In a letter to FBI Director Chris Wray and Justice criminal division chief John Cronan, six Democratic lawmakers with oversight of Pruitt’s agency allege he repeatedly violated federal anti-corruption laws by seeking to leverage his government position for personal gain.

As evidence, the Democrats cite Pruitt’s $50-a-night lease of a Capitol Hill condo tied to a lobbyist seeking to influence his agency, directing an EPA aide to contact a senior Chick-fil-A executive as part of an effort to land his family a franchise, and a $2,000 payment to his wife from organizers of a conference the administrator then attended at taxpayer expense.

EPA spokesman Jahan Wilcox referred questions to Pruitt’s outside legal counsel, though he did not respond to an inquiry about who that lawyer is.

Pruitt acknowledged last month that friends and supporters had established a legal defense fund, which Democrats and ethics watchdogs quickly derided as a potential “tip jar” for polluters seeking favorable treatment from his agency.

President Donald Trump signaled Friday he is still standing by his embattled EPA chief, even as Pruitt’s support among other Republicans has started to erode. “Scott Pruitt is doing a great job within the walls of the EPA,” Trump said.

There are now at least a dozen ongoing investigations related to Pruitt by EPA’s Office of Inspector General, the Government Accountability Office and congressional committees.